DCMCompare find differences in the same file?! [by mex]

Thu, 22 Apr 2010 09:49:06 +0200

DICOM Compare:: DCMCompare find differences in the same file?!
Hi,

i was working with DCMCompare and wondered about a displayed difference in the Pixel Data Tag.
So i compared the file with itself and there was still a difference displayed. Seems like a bug in DCMCompare...!?

If you wish, i can send you the file per email. (It's a RTDOSE file, about 8MB)

kind regards

mex

Re: syntax transfert [by lordglub]

Thu, 25 Sep 2008 20:23:13 +0200

DICOM Compare:: syntax transfert
i have edit files with a hexadecimal editor so :

first i have used the instance wiht uid 100.118.116.2005.2.1.1132055943.781.1 in One^Secondary Capture Image study to my test transfert.

pixel data a file transfert in explicit big endian is named:
B08_0010.pix
pixel data a file transfert in explicit little endian is named:
B08_0020.pix
pixel data a file transfert in implicit little endian is named :
W08L0012.pix

Aaa it sound strange i suppose than 08 is for bits allocated or bits stored . B or W i suppose it is some information refering to data... L or "_" i have no idea end the 4 last caracter for a number.

if i edite all B files raw pixel data i can see before the transfer syntax "BB" and a "*"(the start is not always at teh same place but it is not a probelem for the comparator) but in W file raw pixel data i can see before the transfer syntax "WW" and a "*".
of sure in every pixel data the transfert syntax are different.

To test,
I have add a CT image from INCISIX study find on :
http://pubimage.hcuge.ch:8080
the 3 file tranfered in EBE ELE ILE genered in comparator a W type pixel data file and the comparaison betwen file wore fine et the only diffrence observed is in tag length et tag of syntax transfert

have you an idea about this probleme ??

file are downloadable on :
http://dl.free.fr/ru4Xvghcw

clic on telcharger ce fichier:

thanks

DVTk (Main) :: Forum

DCMCompare find differences in the same file?! [by mex]

Re: syntax transfert [by lordglub]